Re: [PATCH v3 03/10] clk: iproc: Add PWRCTRL support

From: Stephen Boyd
Date: Wed Oct 21 2015 - 19:48:18 EST


On 10/15, Jon Mason wrote:
> Some iProc SoC clocks use a different way to control clock power, via
> the PWRDWN bit in the PLL control register. Since the PLL control
> register is used to access the PWRDWN bit, there is no need for the
> pwr_base when this is being used. A new flag, IPROC_CLK_EMBED_PWRCTRL,
> has been added to identify this usage. We can use the AON interface to
> write the values to enable/disable PWRDOWN.
>
> Signed-off-by: Jon Mason <jonmason@xxxxxxxxxxxx>
> ---

Applied to clk-next +

---8<----
diff --git a/drivers/clk/bcm/clk-iproc-pll.c b/drivers/clk/bcm/clk-iproc-pll.c
index 61b49ba24602..fb1e6b1d0df6 100644
--- a/drivers/clk/bcm/clk-iproc-pll.c
+++ b/drivers/clk/bcm/clk-iproc-pll.c
@@ -150,7 +150,7 @@ static void __pll_disable(struct iproc_pll *pll)

if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
val = readl(pll->pll_base + ctrl->aon.offset);
- val |= (bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
+ val |= bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift;
writel(val, pll->pll_base + ctrl->aon.offset);

if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
@@ -160,7 +160,7 @@ static void __pll_disable(struct iproc_pll *pll)
if (pll->pwr_base) {
/* latch input value so core power can be shut down */
val = readl(pll->pwr_base + ctrl->aon.offset);
- val |= (1 << ctrl->aon.iso_shift);
+ val |= 1 << ctrl->aon.iso_shift;
writel(val, pll->pwr_base + ctrl->aon.offset);

/* power down the core */
--
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